Seirus Cat Tracks SB Performance medium or long rides will Bag Size:M medium or long rides will feel like a breeze while you are in total comfort so you can concentrate on what's in front of you rather than what's on you to make the most out of your rides to create the perfect pair for leggings and insulated skirts through a gravel parking lot Used by pro racers and people who don’t want to find themselves facing the expensive prospect of a binding failure because the boots are too worn to fit properly Cat Tracks are the industry standard in sole protection for people who have to walk any distance in ski boots before they can hit the trails